03-16-2020, 04:36 PM
today me and my buddy changed the front drivers side airbag on my 99. it is a firestone W01-358-8087
the one on the coach was badly checked and was leaking on the side of it when i sprayed bubbles on it.
it is not a hard task if you have the tools.
a trick we used was to put the new bag in, we sucked the air out of it with a shop vac and then used a piece of wire to keep it compressed so it would go back in easily.
we had to rotate the bottom of the bag to get the mounting bolts to break loose.
the old airbag had a different rubber bag part than the new one. the old bag had the metal bottom held on with 4 nuts. once they were off, the bottom came off, the plate inside the airbag came loose and you could stick your hand inside the bag. the new bag was sealed on the bottom and had one bolt that held the bottom metal mount on and you could easily rotate the bottom to align the mounting holes.
1. lifted coach as high as it would go with air leveling system,
2. put 4 jackstands underneath. let all air out of front bags using down arrow on hwh control.
3. put my air over hydraulic jack to jack up the wheel off the ground.
4. used 1" impact gun with 1 1/2" impact socket (left hand thread since we were on drivers side) and took lugnuts off
5. used wheel dolly to remove tire/wheel
6. broke loose air fitting and removed on top
7. removed 4 3/4" nuts on top of airbag mount
8. removed 2 3/4" bolts from bottom mount
9. used two large pry bars to squash bag down to remove it.
10. removed air fitting using 1/2" impact gun and installed in new bag with goop
11. loosened nut on bottom of new airbag and oriented bottom mount properly
12. used shop vac to suck bag down and compressed and tied with piece of 12g wire.
13. put in mount. started two bottom bolts into mount, then aligned top bolts in upper frame
14. connected air hose and partially inflated bag using hwh up arrow on panel
15. verified bag was aligned and not twisted.
16. put on all mounting bolts and nuts and tightened air hose
17. put wheel and tire back on and torqued with 1" torque stick to 475ft lbs. verified with torque wrench.
here are a few pictures
tom
the one on the coach was badly checked and was leaking on the side of it when i sprayed bubbles on it.
it is not a hard task if you have the tools.
a trick we used was to put the new bag in, we sucked the air out of it with a shop vac and then used a piece of wire to keep it compressed so it would go back in easily.
we had to rotate the bottom of the bag to get the mounting bolts to break loose.
the old airbag had a different rubber bag part than the new one. the old bag had the metal bottom held on with 4 nuts. once they were off, the bottom came off, the plate inside the airbag came loose and you could stick your hand inside the bag. the new bag was sealed on the bottom and had one bolt that held the bottom metal mount on and you could easily rotate the bottom to align the mounting holes.
1. lifted coach as high as it would go with air leveling system,
2. put 4 jackstands underneath. let all air out of front bags using down arrow on hwh control.
3. put my air over hydraulic jack to jack up the wheel off the ground.
4. used 1" impact gun with 1 1/2" impact socket (left hand thread since we were on drivers side) and took lugnuts off
5. used wheel dolly to remove tire/wheel
6. broke loose air fitting and removed on top
7. removed 4 3/4" nuts on top of airbag mount
8. removed 2 3/4" bolts from bottom mount
9. used two large pry bars to squash bag down to remove it.
10. removed air fitting using 1/2" impact gun and installed in new bag with goop
11. loosened nut on bottom of new airbag and oriented bottom mount properly
12. used shop vac to suck bag down and compressed and tied with piece of 12g wire.
13. put in mount. started two bottom bolts into mount, then aligned top bolts in upper frame
14. connected air hose and partially inflated bag using hwh up arrow on panel
15. verified bag was aligned and not twisted.
16. put on all mounting bolts and nuts and tightened air hose
17. put wheel and tire back on and torqued with 1" torque stick to 475ft lbs. verified with torque wrench.
here are a few pictures
tom
2002 45'8" Newell Coach 608 Series 60 DDEC4/Allison World 6 Speed HD4000MH